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1. www.britannica.com › science › nucleus-biologyNucleus | Definition, Function, Structure, & Facts | Britannica

   www.britannica.com › science › nucleus-biology

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   18 Σεπ 2024 · nucleus, in biology, a specialized structure occurring in most cells (except bacteria and blue-green algae) and separated from the rest of the cell by a double layer, the nuclear membrane.

   • Nucleolus

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   • 6 Cell Organelles

     The nucleus controls all of the cell’s activities, such as...

   • Endoplasmic Reticulum

     The ER can be classified in two functionally distinct forms:...

   • Messenger RNA

     In prokaryotes (organisms that lack a distinct nucleus),...

   • Nuclear Envelope

     Other articles where nuclear envelope is discussed: cell:...

2. www.biologyonline.com › dictionary › nucleusNucleus - Definition and Examples - Biology Online Dictionary

   www.biologyonline.com › dictionary › nucleus

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   1 Σεπ 2023 · Biology definition: A nucleus is a large double-membraned organelle that is sometimes referred to as the “central unit” of the cell because it contains the chromosomes that bear the genetic material. It is not found only in eukaryotic cells and not in prokaryotic cells.

3. biologydictionary.net › cell-nucleusCell Nucleus (Plant & Animal) - Definition and Function | Biology

   biologydictionary.net › cell-nucleus

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   4 Οκτ 2019 · Cell Nucleus Definition. The cell nucleus is a large organelle in eukaryotic organisms which protects the majority of the DNA within each cell. The nucleus also produces the necessary precursors for protein synthesis.

4. sciencenotes.org › cell-nucleus-definition-structure-functionCell Nucleus - Definition, Structure, Function - Science Notes...

   sciencenotes.org › cell-nucleus-definition-structure-function

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   8 Οκτ 2024 · Cell Nucleus Definition. The nucleus is a large, membrane-bound organelle in eukaryotic cells that contains the cell’s genetic material in the form of DNA. Its primary role is to regulate gene expression, mediate replication, and coordinate cell activities like growth and metabolism.

5. www.sciencefacts.net › cell-nucleusCell Nucleus: Definition, Structure, & Function, with Diagram

   www.sciencefacts.net › cell-nucleus

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   4 Φεβ 2021 · A nucleus is a double membrane-bound organelle that contains the genetic material of eukaryotic cells. Learn about its structure, functions, and FAQs with a diagram and examples.

6. simple.wikipedia.org › wiki › Cell_nucleusCell nucleus - Simple English Wikipedia, the free encyclopedia

   simple.wikipedia.org › wiki › Cell_nucleus

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   The cell nucleus (plural: cell nuclei) contains the cell's genes and controls the cell's growth and reproduction. It has a double layered nuclear membrane round it. The nucleus is usually the most prominent organelle in a cell. The nucleus is small and round, and works as the cell's control center. It contains chromosomes which house the DNA.

7. biologynotesonline.com › nucleus-structure-and-functionsNucleus – Definition, Structure, Diagram, and Functions

   biologynotesonline.com › nucleus-structure-and-functions

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   8 Απρ 2024 · Nucleus Definition. The nucleus is a membrane-bound organelle found in eukaryotic cells that contains the genetic material. It is responsible for controlling the cell’s growth, metabolism, and reproduction by regulating gene expression. Characteristics of Nucleolus